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git.zerfleddert.de Git - proxmark3-svn/blob - client/util.c
1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
5 // at your option, any later version. See the LICENSE.txt file for the text of
7 //-----------------------------------------------------------------------------
9 //-----------------------------------------------------------------------------
24 #define MAX_BIN_BREAK_LENGTH (3072+384+1)
28 #include <sys/ioctl.h>
35 static struct termios Otty
, Ntty
;
37 if ( tcgetattr(STDIN_FILENO
, &Otty
) == -1 ) return -1;
40 Ntty
.c_iflag
= 0x0000; // input mode
41 Ntty
.c_oflag
= 0x0000; // output mode
42 Ntty
.c_lflag
&= ~ICANON
; // control mode = raw
43 Ntty
.c_cc
[VMIN
] = 1; // return if at least 1 character is in the queue
44 Ntty
.c_cc
[VTIME
] = 0; // no timeout. Wait forever
46 if (0 == (error
= tcsetattr(STDIN_FILENO
, TCSANOW
, &Ntty
))) { // set new attributes
47 error
+= ioctl(STDIN_FILENO
, FIONREAD
, &cnt
); // get number of characters availabe
48 error
+= tcsetattr(STDIN_FILENO
, TCSANOW
, &Otty
); // reset attributes
51 return ( error
== 0 ? cnt
: -1 );
62 // log files functions
63 void AddLogLine(char *file
, char *extData
, char *c
) {
65 char filename
[FILE_PATH_SIZE
] = {0x00};
69 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
70 memcpy(filename
, file
, len
);
72 fLog
= fopen(filename
, "a");
74 printf("Could not append log file %s", filename
);
78 fprintf(fLog
, "%s", extData
);
79 fprintf(fLog
, "%s\n", c
);
83 void AddLogHex(char *fileName
, char *extData
, const uint8_t * data
, const size_t len
){
84 AddLogLine(fileName
, extData
, sprint_hex(data
, len
));
87 void AddLogUint64(char *fileName
, char *extData
, const uint64_t data
) {
89 sprintf(buf
, "%x%x", (unsigned int)((data
& 0xFFFFFFFF00000000) >> 32), (unsigned int)(data
& 0xFFFFFFFF));
90 AddLogLine(fileName
, extData
, buf
);
93 void AddLogCurrentDT(char *fileName
) {
98 curTime
= gmtime(&now
);
100 strftime (buff
, sizeof(buff
), "%Y-%m-%d %H:%M:%S", curTime
);
101 AddLogLine(fileName
, "\nanticollision: ", buff
);
104 void FillFileNameByUID(char *fileName
, uint8_t * uid
, char *ext
, int byteCount
) {
105 char * fnameptr
= fileName
;
106 memset(fileName
, 0x00, 200);
108 for (int j
= 0; j
< byteCount
; j
++, fnameptr
+= 2)
109 sprintf(fnameptr
, "%02x", (unsigned int) uid
[j
]);
110 sprintf(fnameptr
, "%s", ext
);
113 void hex_to_buffer(const uint8_t *buf
, const uint8_t *hex_data
, const size_t hex_len
, const size_t hex_max_len
,
114 const size_t min_str_len
, const size_t spaces_between
, bool uppercase
) {
116 char *tmp
= (char *)buf
;
118 memset(tmp
, 0x00, hex_max_len
);
120 int maxLen
= ( hex_len
> hex_max_len
) ? hex_max_len
: hex_len
;
122 for (i
= 0; i
< maxLen
; ++i
, tmp
+= 2 + spaces_between
) {
123 sprintf(tmp
, (uppercase
) ? "%02X" : "%02x", (unsigned int) hex_data
[i
]);
125 for (int j
= 0; j
< spaces_between
; j
++)
126 sprintf(tmp
+ 2 + j
, " ");
129 i
*= (2 + spaces_between
);
130 int minStrLen
= min_str_len
> i
? min_str_len
: 0;
131 if (minStrLen
> hex_max_len
)
132 minStrLen
= hex_max_len
;
133 for(; i
< minStrLen
; i
++, tmp
+= 1)
139 // printing and converting functions
141 char *sprint_hex(const uint8_t *data
, const size_t len
) {
142 static char buf
[1025] = {0};
144 hex_to_buffer((uint8_t *)buf
, data
, len
, sizeof(buf
) - 1, 0, 1, false);
149 char *sprint_hex_inrow_ex(const uint8_t *data
, const size_t len
, const size_t min_str_len
) {
150 static char buf
[1025] = {0};
152 hex_to_buffer((uint8_t *)buf
, data
, len
, sizeof(buf
) - 1, min_str_len
, 0, false);
157 char *sprint_hex_inrow(const uint8_t *data
, const size_t len
) {
158 return sprint_hex_inrow_ex(data
, len
, 0);
161 char *sprint_bin_break(const uint8_t *data
, const size_t len
, const uint8_t breaks
) {
162 // make sure we don't go beyond our char array memory
165 max_len
= ( len
> MAX_BIN_BREAK_LENGTH
) ? MAX_BIN_BREAK_LENGTH
: len
;
167 max_len
= ( len
+(len
/breaks
) > MAX_BIN_BREAK_LENGTH
) ? MAX_BIN_BREAK_LENGTH
: len
+(len
/breaks
);
169 static char buf
[MAX_BIN_BREAK_LENGTH
]; // 3072 + end of line characters if broken at 8 bits
171 memset(buf
, 0x00, sizeof(buf
));
175 // loop through the out_index to make sure we don't go too far
176 for (size_t out_index
=0; out_index
< max_len
; out_index
++) {
177 // set character - (should be binary but verify it isn't more than 1 digit)
178 if (data
[in_index
]<10)
179 sprintf(tmp
++, "%u", (unsigned int) data
[in_index
]);
180 // check if a line break is needed and we have room to print it in our array
181 if ( (breaks
> 0) && !((in_index
+1) % breaks
) && (out_index
+1 < max_len
) ) {
182 // increment and print line break
184 sprintf(tmp
++, "%s","\n");
192 char *sprint_bin(const uint8_t *data
, const size_t len
) {
193 return sprint_bin_break(data
, len
, 0);
196 char *sprint_ascii_ex(const uint8_t *data
, const size_t len
, const size_t min_str_len
) {
197 static char buf
[1024];
199 memset(buf
, 0x00, 1024);
200 size_t max_len
= (len
> 1010) ? 1010 : len
;
204 tmp
[i
] = ((c
< 32) || (c
== 127)) ? '.' : c
;
208 int minStrLen
= min_str_len
> i
? min_str_len
: 0;
209 for(; i
< minStrLen
; ++i
)
215 void num_to_bytes(uint64_t n
, size_t len
, uint8_t* dest
)
218 dest
[len
] = (uint8_t) n
;
223 uint64_t bytes_to_num(uint8_t* src
, size_t len
)
228 num
= (num
<< 8) | (*src
);
234 void num_to_bytebits(uint64_t n
, size_t len
, uint8_t *dest
) {
241 //least significant bit first
242 void num_to_bytebitsLSBF(uint64_t n
, size_t len
, uint8_t *dest
) {
243 for(int i
= 0 ; i
< len
; ++i
) {
249 // Swap bit order on a uint32_t value. Can be limited by nrbits just use say 8bits reversal
250 // And clears the rest of the bits.
251 uint32_t SwapBits(uint32_t value
, int nrbits
) {
252 uint32_t newvalue
= 0;
253 for(int i
= 0; i
< nrbits
; i
++) {
254 newvalue
^= ((value
>> i
) & 1) << (nrbits
- 1 - i
);
259 // aa,bb,cc,dd,ee,ff,gg,hh, ii,jj,kk,ll,mm,nn,oo,pp
261 // hh,gg,ff,ee,dd,cc,bb,aa, pp,oo,nn,mm,ll,kk,jj,ii
262 // up to 64 bytes or 512 bits
263 uint8_t *SwapEndian64(const uint8_t *src
, const size_t len
, const uint8_t blockSize
){
264 static uint8_t buf
[64];
265 memset(buf
, 0x00, 64);
267 for (uint8_t block
=0; block
< (uint8_t)(len
/blockSize
); block
++){
268 for (size_t i
= 0; i
< blockSize
; i
++){
269 tmp
[i
+(blockSize
*block
)] = src
[(blockSize
-1-i
)+(blockSize
*block
)];
275 //assumes little endian
276 char * printBits(size_t const size
, void const * const ptr
)
278 unsigned char *b
= (unsigned char*) ptr
;
280 static char buf
[1024];
284 for (i
=size
-1;i
>=0;i
--)
288 byte
= b
[i
] & (1<<j
);
290 sprintf(tmp
, "%u", (unsigned int)byte
);
297 char * printBitsPar(const uint8_t *b
, size_t len
) {
298 static char buf1
[512] = {0};
299 static char buf2
[512] = {0};
305 memset(buf
, 0x00, 512);
307 for (int i
= 0; i
< len
; i
++) {
308 buf
[i
] = ((b
[i
/ 8] << (i
% 8)) & 0x80) ? '1':'0';
314 // -------------------------------------------------------------------------
315 // string parameters lib
316 // -------------------------------------------------------------------------
318 // -------------------------------------------------------------------------
320 // bg, en - symbol numbers in param line of beginning and ending parameter
321 // paramnum - param number (from 0)
322 // -------------------------------------------------------------------------
323 int param_getptr(const char *line
, int *bg
, int *en
, int paramnum
)
326 int len
= strlen(line
);
332 while (line
[*bg
] ==' ' || line
[*bg
]=='\t') (*bg
)++;
337 for (i
= 0; i
< paramnum
; i
++) {
338 while (line
[*bg
]!=' ' && line
[*bg
]!='\t' && line
[*bg
] != '\0') (*bg
)++;
339 while (line
[*bg
]==' ' || line
[*bg
]=='\t') (*bg
)++;
341 if (line
[*bg
] == '\0') return 1;
345 while (line
[*en
] != ' ' && line
[*en
] != '\t' && line
[*en
] != '\0') (*en
)++;
353 int param_getlength(const char *line
, int paramnum
)
357 if (param_getptr(line
, &bg
, &en
, paramnum
)) return 0;
362 char param_getchar(const char *line
, int paramnum
) {
363 return param_getchar_indx(line
, 0, paramnum
);
366 char param_getchar_indx(const char *line
, int indx
, int paramnum
) {
369 if (param_getptr(line
, &bg
, &en
, paramnum
)) return 0x00;
374 return line
[bg
+ indx
];
377 uint8_t param_get8(const char *line
, int paramnum
)
379 return param_get8ex(line
, paramnum
, 0, 10);
383 * @brief Reads a decimal integer (actually, 0-254, not 255)
386 * @return -1 if error
388 uint8_t param_getdec(const char *line
, int paramnum
, uint8_t *destination
)
390 uint8_t val
= param_get8ex(line
, paramnum
, 255, 10);
391 if( (int8_t) val
== -1) return 1;
392 (*destination
) = val
;
396 * @brief Checks if param is decimal
401 uint8_t param_isdec(const char *line
, int paramnum
)
404 //TODO, check more thorougly
405 if (!param_getptr(line
, &bg
, &en
, paramnum
)) return 1;
406 // return strtoul(&line[bg], NULL, 10) & 0xff;
411 uint8_t param_get8ex(const char *line
, int paramnum
, int deflt
, int base
)
415 if (!param_getptr(line
, &bg
, &en
, paramnum
))
416 return strtoul(&line
[bg
], NULL
, base
) & 0xff;
421 uint32_t param_get32ex(const char *line
, int paramnum
, int deflt
, int base
)
425 if (!param_getptr(line
, &bg
, &en
, paramnum
))
426 return strtoul(&line
[bg
], NULL
, base
);
431 uint64_t param_get64ex(const char *line
, int paramnum
, int deflt
, int base
)
435 if (!param_getptr(line
, &bg
, &en
, paramnum
))
436 return strtoull(&line
[bg
], NULL
, base
);
441 int param_gethex(const char *line
, int paramnum
, uint8_t * data
, int hexcnt
)
448 if (param_getptr(line
, &bg
, &en
, paramnum
)) return 1;
450 if (en
- bg
+ 1 != hexcnt
)
453 for(i
= 0; i
< hexcnt
; i
+= 2) {
454 if (!(isxdigit((unsigned char)line
[bg
+ i
]) && isxdigit((unsigned char)line
[bg
+ i
+ 1])) ) return 1;
456 sscanf((char[]){line
[bg
+ i
], line
[bg
+ i
+ 1], 0}, "%X", &temp
);
457 data
[i
/ 2] = temp
& 0xff;
462 int param_gethex_ex(const char *line
, int paramnum
, uint8_t * data
, int *hexcnt
)
469 if (param_getptr(line
, &bg
, &en
, paramnum
)) return 1;
471 *hexcnt
= en
- bg
+ 1;
472 if (*hexcnt
% 2) //error if not complete hex bytes
475 for(i
= 0; i
< *hexcnt
; i
+= 2) {
476 if (!(isxdigit((unsigned char)line
[bg
+ i
]) && isxdigit((unsigned char)line
[bg
+ i
+ 1])) ) return 1;
478 sscanf((char[]){line
[bg
+ i
], line
[bg
+ i
+ 1], 0}, "%X", &temp
);
479 data
[i
/ 2] = temp
& 0xff;
485 int param_gethex_to_eol(const char *line
, int paramnum
, uint8_t * data
, int maxdatalen
, int *datalen
) {
490 if (param_getptr(line
, &bg
, &en
, paramnum
)) return 1;
496 if (line
[indx
] == '\t' || line
[indx
] == ' ') {
501 if (isxdigit((unsigned char)line
[indx
])) {
502 buf
[strlen(buf
) + 1] = 0x00;
503 buf
[strlen(buf
)] = line
[indx
];
505 // if we have symbols other than spaces and hex
509 if (*datalen
>= maxdatalen
) {
510 // if we dont have space in buffer and have symbols to translate
514 if (strlen(buf
) >= 2) {
515 sscanf(buf
, "%x", &temp
);
516 data
[*datalen
] = (uint8_t)(temp
& 0xff);
525 //error when not completed hex bytes
531 int param_getstr(const char *line
, int paramnum
, char * str
, size_t buffersize
)
535 if (param_getptr(line
, &bg
, &en
, paramnum
)) {
539 // Prevent out of bounds errors
540 if (en
- bg
+ 1 >= buffersize
) {
541 printf("out of bounds error: want %d bytes have %zd bytes\n", en
- bg
+ 1 + 1, buffersize
);
545 memcpy(str
, line
+ bg
, en
- bg
+ 1);
546 str
[en
- bg
+ 1] = 0;
552 The following methods comes from Rfidler sourcecode.
553 https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/src/
556 // convert hex to sequence of 0/1 bit values
557 // returns number of bits converted
558 int hextobinarray(char *target
, char *source
)
560 int length
, i
, count
= 0;
561 char* start
= source
;
564 length
= strlen(source
);
565 // process 4 bits (1 hex digit) at a time
570 if (x
>= 'a' && x
<= 'f')
572 // convert to numeric value
573 if (x
>= '0' && x
<= '9')
575 else if (x
>= 'A' && x
<= 'F')
578 printf("Discovered unknown character %c %d at idx %tu of %s\n", x
, x
, source
- start
, start
);
582 for(i
= 0 ; i
< 4 ; ++i
, ++count
)
583 *(target
++)= (x
>> (3 - i
)) & 1;
589 // convert binary array of 0x00/0x01 values to hex (safe to do in place as target will always be shorter than source)
590 // return number of bits converted
591 int binarraytohex(char *target
,char *source
, int length
)
601 for(i
= x
= 0 ; i
< 4 ; ++i
)
602 x
+= ( source
[i
] << (3 - i
));
603 sprintf(target
,"%X", (unsigned int)x
);
611 // return parity bit required to match type
612 uint8_t GetParity( uint8_t *bits
, uint8_t type
, int length
)
616 for(x
= 0 ; length
> 0 ; --length
)
617 x
+= bits
[length
- 1];
623 // add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half
624 void wiegand_add_parity(uint8_t *target
, uint8_t *source
, uint8_t length
)
626 *(target
++)= GetParity(source
, EVEN
, length
/ 2);
627 memcpy(target
, source
, length
);
629 *(target
)= GetParity(source
+ length
/ 2, ODD
, length
/ 2);
632 // xor two arrays together for len items. The dst array contains the new xored values.
633 void xor(unsigned char *dst
, unsigned char *src
, size_t len
) {
634 for( ; len
> 0; len
--,dst
++,src
++)
638 // RotateLeft - Ultralight, Desfire, works on byte level
639 // 00-01-02 >> 01-02-00
640 void rol(uint8_t *data
, const size_t len
){
641 uint8_t first
= data
[0];
642 for (size_t i
= 0; i
< len
-1; i
++) {
649 // Replace unprintable characters with a dot in char buffer
650 void clean_ascii(unsigned char *buf
, size_t len
) {
651 for (size_t i
= 0; i
< len
; i
++) {
652 if (!isprint(buf
[i
]))
657 // replace \r \n to \0
658 void strcleanrn(char *buf
, size_t len
) {
659 strcreplace(buf
, len
, '\n', '\0');
660 strcreplace(buf
, len
, '\r', '\0');
663 // replace char in buffer
664 void strcreplace(char *buf
, size_t len
, char from
, char to
) {
665 for (size_t i
= 0; i
< len
; i
++) {
671 char *strmcopy(char *buf
) {
673 if ((str
= (char*) malloc(strlen(buf
) + 1)) != NULL
) {
674 memset(str
, 0, strlen(buf
) + 1);
681 // determine number of logical CPU cores (use for multithreaded functions)
682 extern int num_CPUs(void)
685 #include <sysinfoapi.h>
687 GetSystemInfo(&sysinfo
);
688 return sysinfo
.dwNumberOfProcessors
;
689 #elif defined(__linux__) || defined(__APPLE__)
691 return sysconf(_SC_NPROCESSORS_ONLN
);